to call back basically rebuke the testimony from the experts. they're not having a very good day of it. the judge, who appointed these experts to actually go over the evidence, has constantly said to them throughout the day, you know, limit your questions, hurry up, let's get going, we're done with this. it's a remarkable turn of events for knox and her defense team who all along had argued that the dna was not there to convict their client. in the absence of an eyewitness, in the absence of a confession from the woman who claims she is innocent, it really does come down to the dna, and specifically what is most alarming, certainly for the prosecution, is that their contention that the alleged murder weapon, a knife, had dna on the blade from the victim, meredith kircher, an exchange student, while this select panel came back and said, no, there is no dna of the victim on that knife, and, in fact, another peterson of evidence which tied her boyfriend into the crime which was a bloody bra clasp, that was ruled to be just too far decayed to even test it.